Berlin Questionnaire

The Berlin Questionnaire is a 10-item screening instrument designed to identify patients at risk for obstructive sleep apnea in primary care and community settings. Developed by Netzer and colleagues in 1999, it uses a three-category scoring approach (snoring symptoms, daytime somnolence, and hypertension/obesity) to stratify OSA risk. The tool is particularly useful in general population screening and has been extensively validated across international cohorts and clinical populations.